Created
May 1, 2020 10:39
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| // 将form序列化为key1=value1&key2=value2这样的个数，在ajax提交form表单时很有用。 | |
| function serialize(form) { | |
| var parts = [], | |
| field = null, i, | |
| len, | |
| j, optLen, option, optValue; | |
| for (i = 0, len = form.elements.length; i < len; i++) { | |
| field = form.elements[i]; | |
| switch (field.type) { | |
| case "select-one": | |
| case "select-multiple": | |
| if (field.name.length) { | |
| for (j = 0, optLen = field.options.length; j < optLen; j++) { | |
| option = field.options[j]; | |
| if (option.selected) { | |
| optValue = ""; | |
| if (option.hasAttribute) { | |
| optValue = (option.hasAttribute("value") ? | |
| option.value : option.text); | |
| } else { | |
| optValue = (option.attributes["value"].specified ? | |
| option.value : option.text); | |
| } | |
| parts.push(encodeURIComponent(field.name) + "=" + | |
| encodeURIComponent(optValue)); | |
| } | |
| } | |
| } | |
| break; | |
| case undefined: //字段集 | |
| case "file": //文件输入 | |
| case "submit": //提交按钮 | |
| case "reset": //重置按钮 | |
| case "button": //自定义按钮 | |
| break; | |
| case "radio": //单选按钮 | |
| case "checkbox": //复选框 | |
| if (!field.checked) { | |
| break; | |
| } | |
| default: | |
| //不包含没有名字的表单字段 | |
| if (field.name.length) { | |
| parts.push(encodeURIComponent(field.name) + "=" + encodeURIComponent(field.value)); | |
| } | |
| } | |
| } | |
| return parts.join("&"); | |
| } |
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